US & the FTC

Affiliate Disclosures on X (Twitter)

Brevity is no excuse. Lead with '#ad', disclose in the specific post that carries the affiliate link, and never rely on your bio alone.

On X (formerly Twitter), the constraints are brevity and speed: short posts, fast scrolling, and threads where context is easily lost. None of that removes the duty to disclose. A post containing an affiliate link, or promoting a product for commission, is advertising and needs a clear disclosure.

The rules for posts

  • Place “#ad” at or near the start of the post, not appended after a string of other hashtags where it is easily missed.
  • In a thread, disclose in the specific post that contains the affiliate link — not only in the first post, which many readers will not have seen.
  • Do not rely on your bio or a pinned post as the only disclosure.
  • If you repost or quote promotional content you are paid for, disclose in your own post.

Character limits are not an excuse

“#ad” costs three characters. The FTC has never accepted space constraints as a reason to omit a disclosure, and on a short-text platform the disclosure is easy to include right at the front.

A worked example

Compliant: “#ad — been using [product] and here’s why… [affiliate link].” The disclosure is the first thing the reader sees, in the same medium as the recommendation, before they reach the link. Non-compliant: a post that opens with the pitch and appends “#ad” after five other hashtags, where fast scrolling hides it. Ambiguous tags such as “#sp” or “#collab” do not qualify anywhere.

Thread and repost pitfalls

  • Disclosing only in the first post of a thread when the affiliate link is three posts down.
  • Adding the link via a reply to your own post without a disclosure on that reply.
  • Quote-posting a brand while omitting your own disclosure.
  • Relying on a pinned post or bio instead of disclosing in the post itself.

X checklist

  • “#ad” at or near the start of the post.
  • Disclosure in the specific post carrying the affiliate link.
  • No reliance on bio, pinned post, or a distant thread opener.
  • Clear label, never “#sp” or “#collab.”

Last reviewed July 2026. This page is general educational information, not legal or tax advice.